diff --git a/requirements.txt b/requirements.txt
index 1bb65c7..27e1a7b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,7 +3,7 @@ appdirs==1.4.0
 argh==0.26.2
 Babel==2.3.4
 cffi==1.9.1
-cryptography==1.7.2
+cryptography==3.2
 docutils==0.13.1
 ezhost
 Fabric3==1.13.1.post1